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BlueField-3
User manual
Nvidia BlueField-3 User Manual page 84
Networking platform
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Contents
Table of Contents
Troubleshooting
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Pin#
Signal Name
4
S_PERST2_CONN_L
5
SER_DI
6
Reserved_06
7
Reserved_07
8
Reserved_08
9
GND
Wire Type
Micro coax
38
Micro coax
38
Micro coax
38
Micro coax
38
Micro coax
38
GND BAR
AWG#
Detailed
Description
Optional: PCIe
compliant PERST_L
(active low PCI
Reset) signal for the
Cabline CA-II Plus
PCIe interface. To be
used as the PERST_L
signal for the control
of PCIe lane 15:8,
when a bifurcation
of the
Cabline CA-II
Plus
PCIe x16
interface to two x8
interfaces is needed
(and in specific main
board assemblies
which support such
bifurcation). The
direction of this
optional PERST_L
signal depends on
the implementation:
When connecting a
CPU root complex to
the
Cabline CA-II
Plus
PCIe interface,
this signal is driven
from the
motherboard side
(from the CPU), to
the BlueField DPU;
When connecting a
GPU or an end point
to the
Cabline CA-II
Plus
PCIe interface,
this signal is driven
from the BlueField
DPU (which operates
as a PCIe switch in
this case), to the
GPU or end-point on
the motherboard
side.
This pin is used as
the serializer data in
from the device/s
located on the
motherboard.
Reserved for future
expansion
Reserved for future
expansion
Pin# on the
other end
4
5
6
7
8
9
84
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Table of Contents
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